baber/WOPTO huggingface dataset:
Patent GB-428397-A (GB)
Title: Improvements in or relating to the sealing of joints between the parts of built-up metal structures
IPC: E21D11/15
Filed: 1933-11-30
Abstract: 428,397. Tunnels. GARRETT, R., 47, Philip Road, Peckham, London. Nov. 30, 1933, No. 33696. [Class 85] [See also Group XXII] In a method of sealing the joints between the parts of a built-up metal tunnel lining &c., the sections A, A<1>, B, B<1>, &c. are provided, during casting, with mild steel strips C forming a bead projecting outwards from the bolting flanges A' and completely surrounding each section. Mild steel strips or sheets D are welded to the adjacent beads C to form a water-tight joint between the sections. Mild steel rings C<1> may also be inserted, during casting, around the bolt holes F to receive caps E welded thereto in order to prevent leakage through the bolt holes.
Patent GB-383442-A (GB)
Title: Improvements in the end-walls, side-walls, lids and bottoms of wooden boxes
IPC: B65D6/00
Filed: 1931-12-04
Abstract: 383,442. Wooden boxes. WIESE, S., 50, Nygaardsgaten, Fredrikstad, Norway. Dec. 4, 1931, No. 33714. Convention date, Jan. 3. [Class 18.] End, side, top and bottom walls of wooden boxes are made from boards 1 assembled by means of strips 2 of plywood, masonite or other artificial wood product inserted in grooves in the ends. The strips may if desired be glued.
Patent GB-325284-A (GB)
Title: Improvements in apparatus for separating coal from dirt and like foreign substances
IPC: B07B13/00
Filed: 1928-11-17
Abstract: 325,284. Berrisford, W. H. Nov. 17, 1928. Separating on interrupted shoots. - In apparatus for separating coal from dirt and stone, of the kind comprising one or a series of inclined plates 1 at the lower end or between the adjacent ends of which is provided a gap 10 into which the dirt falls, the plates 1 which may be of any hard material such as glass, steel or alloy, are made dish-shaped in general contour and disposed at a suitable angle of inclination. The contour of the plate may be a continuous arc, as shown, or may be made up of plane surfaces joined by arcs. The plate is supported on a bracket 3 pivoted at 4 and adjusted by an eccentric 6. The dirt or stone shoot 8 may be provided with an adjustable division plate 10 on the outside of which is disposed the coal-shoot 9. Alternatively, the shoot 9 may be formed by another separating plate 1.
Patent GB-1191756-A (GB)
Title: Shielded Current Measuring Device
IPC: H01F38/30
Filed: 1968-07-16
Abstract: 1,191,756. Current transformers. TEKTRONIX Inc. 16 July, 1968 [17 July, 1967], No. 33817/68. Heading H1T. A current transformer, e.g. in a currentmeasuring probe, is enclosed in a shield 38, 40 (Fig. 3) of high permeability magnetic material, to screen it from external magnetic field, and the shield is provided with a short-circuited winding 54 (Fig. 5) which links the shield but not the transformer core. The transformer core has a fixed lower half 38 which can be placed around a conductor 26 carrying a current to be measured, a movable member carrying the upper core half 40 being then slid forwards until the two core halves register. Instead of using a copper strap 54 for the shorted winding, this may be provided by a layer or coating, e.g. copper/cadmium plating. Instead of one magnetic shield, a pair of such shields may be arranged one inside the other, each having a shorting conductive coating on its lower or both parts. The probe may include a Hall device 56. The device may have a bushing through which the primary conductor is to pass, the bushing having a broken copper coating which provides electrostatic shielding between the conductor and the core.
Patent GB-348198-A (GB)
Title: Improvements in or relating to sound reproducing devices
IPC: H04R9/04
Filed: 1930-08-05
Abstract: 348,198. Loud-speakers. SUMNER, E. H., Poplar Cottage, Hillingdon Heath, Middlesex. Aug. 5, 1930, No. 33819/29. [Class 40 (iv).] The speech coil of a loud-speaker is secured against lateral motion by membranes attached to the magnet and bearing lightly against the walls of the coil at each of its ends. Alternatively, flexible ligaments tangential to the coil may replace the membranes, and in each case one end of the coil may be centred by the usual means. The coil c may also have a diaphragm a, a<1> attached to each end, as shown, the diaphragm a<1> being attached to extensions of the coil former passing through holes in the base of the magnet.
Patent GB-1203636-A (GB)
Title: Improvements in or relating to timing devices for microwave ovens
Inventor: TIBBS CHRISTOPHER EVAN MUNDELL
IPC: H05B6/80
Filed: 1967-05-30
Abstract: 1,203,636. Rack and pigion gearing. DYSONA INDUSTRIES Ltd. 28 May, 1968 [30 May, 1967; 24 July, 1967], Nos. 24877/67 and 33879/67. Heading F2Q. [Also in Division H1] A timing unit for a microwave oven associated with a food-vending machine is controlled by an elongated key 10 of plastics material which is inserted into a slot 24. A rack 16a, 16b extending the length of the key 10 is then engaged by a toothed wheel 12 continuously driven by a motor 26 at 4 r.p.m., for example, and the key is thus drawn through the unit and fed into a key basket, not shown. The passage of the key 10 rotates a narrow toothed wheel 14 by an amount depending upon the length of a shorter rack portion 18. Wheel 14 is connected to a motor 28 by a slipping clutch (20, Fig. 1, not shown). When the oven is switched on the motor 28 drives the wheel 14 back to its starting position where a pin 22 re-engages a lever 30 to open switch 32 and de-energize the oven. Several keys may be inserted consecutively to provide a cooking time corresponding to the total length of their rack portions 18, and a solenoid-operated shutter (not described) may close the slot 24 to prevent the wheel 14 being thus set more than a complete revolution. Keys having other rack arrangements are disclosed in Figs. 5a, 5b and 5c (not shown), those of Figs. 5b and 5c requiring modification of wheels 12 and 14.
Patent GB-1322265-A (GB)
Title: Partial alkylation of polyhydroxybenzophenones
IPC: C07C51/00
Filed: 1971-07-20
Abstract: 1322265 Alkylation of polyhydroxybenzophenones AMERICAN CYANAMID CO 20 July 1971 [25 Aug 1970] 34052/71 Addition to 1194320 Heading C2C Polyhydroxybenzophenones having the general formula where R is hydrogen, alkyl, alkoxy, halogen, carboxy, carbalkoxy or hydroxy and R 1  and R 2  are hydrogen, alkyl, alkoxy, halogen, carboxy, carbalkoxy or hydroxy, provided that both R 1  and R 2  are simultaneously a hydroxy group, is alkylated to form a product of the formula where R 3  is alkyl, by forming a reaction mixture of the starting material (I), an alkyl halide of from 1 to 20 carbon atoms, and acid acceptor and as solvent a (C 1 -C 6 ) alkyl ether of ethylene glycol or diethylene glycol and refluxing this mixture to effect alkylation.
Patent GB-964102-A (GB)
Title: Improvements in or relating to textile winding machines
Inventor: ALLEN ROY
IPC: B65H59/16
Filed: 1959-10-08
Abstract: 964,102. Tensioning yarns in textile machines; creels. ARTHUR TUNNICLIFFE & SON Ltd. Oct. 7, 1960 [Oct. 8, 1959], No. 34067/59. Headings D1C, DID and D1M. Yarns 1, Figs. 1 and 2 are tensioned by passing them between contacting rollers 5, 6, the roller 6 being coupled to an electro-magnetic brake 13, 14 to provide for a-uniform but variable tension as the yarns are wound on to a beam or bobbins 9. The rollers may be smooth surfaced or roughened and one may have a resilient surface. The device is applicable to spinning, knitting, warping and lace machines. The Provisional Specification describes also a creel arrangement, Fig. 3, in which the yarns 1 from superposed rows of yarn packages 18 are guided through wedge-shaped guide members 20.
Patent GB-1239918-A (GB)
Title: Magnetic recording
Inventor: LAUDER JOHN
IPC: H04N5/7826
Filed: 1967-07-25
Abstract: 1,239,918. Magnetic recording. J. LAUDER. 25 July, 1968 [25 July, 1967], No. 34089/67. Heading G5R. A magnetic recording medium, e.g. tape or disc, is driven through a gap between two polepieces of a recording and/or playback head which polepieces are relatively movable so as to produce a minimum air gap which moves transversely of the direction of travel of the record and in a direction different to the relative velocity of the polepieces. A video tape having transverse tracks may thus be transduced and edited. In Fig. 1 a motor 2 drives a rotor 1 having oblique, inset magnetic polepieces 5, Fig. 4, and co-operating with a single, axial polepiece forming part of a magnetic core structure 3 having a record/playback winding 4 and a monitoring winding 9 on the same core or on a separate structure 8. For editing, a magnetic clutch 12 is energized to couple a trunnion 10 supporting the core structure to the motor and thereby drive the structure in a direction opposite to the tape (which may however be stationary) until it abuts a stop which may incorporate a switch to de-energize the clutch, a spring 11 returning the structure to its normal position. In a modification three sets of polepieces are provided in the rotor periphery to define three tracks, handling different frequency ranges, and in others the magnetic inserts 5 are positioned at the edge of the circular face of the rotor, or on the periphery of a rotor of truncated conical shape and may be radial, oblique or helical and have concave operative surfaces, whilst the record path may be other than tangential to the rotor. Insert construction.-The tip of a polepiece in section across a groove containing it is shown in Fig. 19 in which 20 is a copper or brass casing, 21 is magnetic foil, 22 a protective plastics or other layer, 23 is ferrite, 24 is a copper or other covering, and 25 a filler material. The inserts are retained in the rotor against centrifugal force by ferrite and non-magnetic rings with screening material in between and on each side of the stationary pole tips.
Patent GB-778356-A (GB)
Title: Mixture for the prevention of bloat in ruminant animals
IPC: A23K1/175
Filed: 1955-11-30
Abstract: A ruminant animal feed has dispersed therein, in order to prevent bloat, a mixture of a liquid dimethylpolysiloxane and colloidal silica.  The liquid dimethylpolysiloxane may vary in consistency from liquids of less than 20 cs. viscosity at 25 DEG C. to liquids which flow very slowly.  The silica has a particle size comparable with silica acrogels and fume silica.  It is used in quantities of 1 to 10 per cent based on the polysiloxane.  For incorporation in feeds directly, it is preferred to premix the polysiloxane and silica prior to incorporation in the feed. Alternatively, the feeds may be sprayed with an aqueous emulsion containing the polysiloxane, silica and a non-toxic emulsifying agent such as sorbitan monolaurate, polyoxyethylene sorbitan laurate or glycol monostearate.  The feeds may contain 1 to 20 per cent of the polysiloxane; the feed may be sprayed with an emulsion containing 0,1 to 5 per cent of the polysiloxane.  The silica-polysiloxane may be used as a mixture with a palatable substance such as molasses, with or without the addition of an inert filler such as bentonite.  Specification 773,728 is referred to.ALSO:A remedy for bloat in ruminant animals comprises an animal food palatable to said animals having dispersed therein a mixture of a liquid dimethylpolysiloxane and colloidal silica.  The liquid dimethylpolysiloxane may vary in consistency from liquids of less than 20 cs. viscosity at 25 DEG C. to liquids which flow very slowly. The silica has a particle size comparable with silica aerogels and fume silica.  It is used in quantities of 1 to 10 per cent based on the polysiloxane.  The silica-polysiloxane is employed as a mixture, with or without inert fillers such as bentonite in admixture with a material such as molasses to make the final mixture palatable and attractive to animals.  It may be incorporated in a food concentrate in quantities of 1 to 20 per cent or an emulsion containing it may be sprayed on to the feed in quantities of 0.1 to 5 per cent.  Such emulsions are prepared with non-toxic emulsifying agents such as sorbitan monolaurate, palmitate, stearate or oleate. Where emulsions are not used it is preferred to premix the polysiloxane and silica prior to incorporation in the feed. Specification 773,728 is referred to.
Patent GB-915540-A (GB)
Title: Improvements in or relating to electrical actuators, for example for fire extinguishers
Inventor: HIRST RONALD
IPC: B60R21/268
Filed: 1960-10-07
Abstract: 915,540. Fire-extinguishers. GRAVINER MANUFACTURING CO. Ltd., and WILKINSON SWORD Ltd. Sept. 22, 1961 [Oct. 7, 1960], No. 34373/60. Class 47. [Also in Group XXIX] An electrical actuator, e.g. for a fire-extinguisher comprises a movable member 12, a glass member 13 normally preventing movement of the member 12, and an electrical resistance wire 14, the arrangement being such that the passage of a predetermined current through the wire fractures the glass by thermal shock, thereby freeing the member 12. As shown, the neck of a fire-extinguisher 10 is closed by a diaphragm 11 which is supported by the piston 12. Fracture of the glass tube 13 allows the piston 12 to move. The fluid pressure in the fire-extinguisher ruptures the diaphragm 11 and the contents thereof (powder or fluid) escape through the outlet 10a. According to the Provisional Specification, the wire 14 may be surrounded by a solid oxidizing agent or a pre-mix gas or alternatively a spark gap may be provided to ignite an explosive air/gas mixture.
Patent GB-1020002-A (GB)
Title: A device for separating and conveying cards from a stack thereof by means of an air stream
IPC: B65H3/14
Filed: 1962-09-07
Abstract: 1,020,002. Feeding sheets. KABUSHIKI KAISHA HITACHI SEISAKUSHO. Sept. 7, 1962 [Sept. 7, 1961], No. 34383/62. Heading B6B. Cards are separated from a stack by jets of compressed air issuing from nozzles 4 in the bottom plate 5 of a chamber 6, which create areas of sub-atmospheric pressure above the stack to lift the top card into contact with rotating feed rollers 16. Solenoid-operated valves 3 control the flow of air through the nozzles. The nozzles may be inclined to the bottom plate Fig. 4 (not shown), to assist in feeding the cards forwardly. Finally, the cards are fed along a passage 20 by jets of compressed air issuing from inclined nozzles in a plate 18.
Patent GB-1110869-A (GB)
Title: Dyestuffs for modified polypropylene
IPC: D06P3/79
Filed: 1966-08-01
Abstract: The invention comprises reactive dyestuffs having the general formula <FORM:1110869/C4-C5/1> wherein X and Z, which may be the same or different, are H, halogen, - SO3CH3, alkyl, nitro, carboxyl, alkoxy, mono- or di-alkyl-amino or arylamino, Y is H, halogen, one of the above groups, or a group - N = N - C6H4-R wherein R is H, halogen, methyl sulphonyl, alkyl, alkoxy or nitro, at least one X, Y or Z being SO3CH3.  They are prepared by reacting an appropriate starting material containing a sulphonic acid group with a phosphorous oxychloride and then pentachloride and finally the sulphochloride is esterified with methyl alcohol.  The dyes dye polypropylene modified with a basic nitrogenous organic modifier yellow, orange and brown-orange shades.ALSO:In examples 3 and 4, polypropylene, modified with dicyclohexamethylenediamine + epichlorohydrin + piperazine polycondensate (1% by weight of the polypropylene) is dyed using mono or dis-azo dyes containing at least one -SO3CH3 group.
Patent GB-964510-A (GB)
Title: Afterburner system
IPC: F23R3/18
Filed: 1958-10-28
Abstract: 964,510. Gas turbine reheat combustion equipment. W. K. KRETSCHMER. Oct. 28, 1958 [Oct. 28, 1957], No. 34556/58. Heading F1L. In an afterburner for a gas turbine fuel is delivered into the exhaust gas stream in a downstream direction to impinge on a shallow concave surface 66 from which it flows downstream over fins 67, 68; part of the fuel supports a pilot flame in the channel 66a between the fins. Preferably fuel is also delivered into the gas stream upstream of the first delivery point 65, for instance at 72, 73, or through a separate duct, Figs. 2, 7 (not shown). The fuel ducts are annular in the tail pipe, Fig. 10 (not shown). Specification 751,048 is referred to.
Patent GB-1501447-A (GB)
Title: Process for the production of foundry cores and moulds
IPC: B22C1/16
Filed: 1975-08-20
Abstract: 1501447 Sand mould compositions BAYER AG 20 Aug 1975 [23 Aug 1974] 34575/75 Heading B3G [Also in Division C3] A foundry sand moulding composition which is set with a tertiary amine is more stable when it contains at least 80% by weight of a diphenyl alkane polyisocyanate which has a group in the ortho position to the isocyanate group causing steric hindrance of all the isocyanate groups. Particularly exemplified are two groups of compounds with formula and specifically 2,2<SP>1</SP>-diisocyanato-5,5<SP>1</SP>-dimethyl phenyl methane, 2,2<SP>1</SP>- diisocyanato - 5,5<SP>1</SP>- dimethyl - diphenyl propane 2,2<SP>1</SP> in one group and 4,4<SP>1</SP>-diisocyanato-3,3<SP>1</SP> dimethyl diphenyl methane, 2,4<SP>1</SP> 8 diisocyanato - 3,3- dimethyl diisocyanatodiphenyl methane, 4,4<SP>1</SP>- diisocyanato-3,3<SP>1</SP> di-tert butyl dipheny<SP>1</SP> methane, 4,4<SP>1</SP> - diisocyanato - 3,3<SP>1</SP> - diethyl diphenyl methane and 4,4<SP>1</SP> diisocyanato - 3,3<SP>1</SP>- dimethyl-diphenyl propane 2,2<SP>1</SP>.
Patent GB-155581-A (GB)
Title: Ball cage for ball bearings
IPC: F16C33/42
Filed: 1920-12-08
Abstract: 155,581. Aktiebolaget Kullagerverken. Dec. 18, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Ball bearings.-A cage for ball bearings comprises side rings 1 with plates 2 separating the balls and pivoted at 3 in the rings 1. Holes 5 are provided in the plates 2 to allow the balls to lie close together without actually contacting.
Patent GB-431375-A (GB)
Title: Therapeutic agent and process for making colloidal calcium malate
IPC: A61K33/06
Filed: 1934-12-04
Abstract: Calcium malate, in the form of an aqueous colloidal dispersion suitable for medical use, is prepared by reacting precipitated calcium hydroxide with malic acid in the presence of a dispersing agent.  Preferably sodium hydroxide is added to a solution of calcium chloride, a dispersing agent such as sodium gluconate is added to the mixture, and finally a solution of malic acid is added.  The pH of the mixture is adjusted to 8,5 by addition of sodium hydroxide or malic acid as required.ALSO:An aqueous dispersion of colloidal calcium malate, for medical use by intravenous or intramuscular injection, is prepared by precipitating calcium hydroxide and reacting therewith malic acid in the presence of a dispersing agent. Preferably sodium hydroxide is added to a solution of calcium chloride to precipitate calcium hydroxide, a dispersing agent such as sodium gluconate is added to the mixture, and a solution of malic acid is then added.  The pH of the mixture is adjusted to 8,5 by addition of sodium hydroxide or malic acid as required and the dispersion is diluted, enclosed in ampoules and sterilized by heat.
Patent GB-949598-A (GB)
Title: Improvements in milling cutters
Inventor: HOUNSOME JAMES THOMAS
IPC: B23C5/10
Filed: 1961-09-28
Abstract: 949,598. Milling-cutters. FUTURMILL (CONVERSION) Ltd. Dec. 27, 1962 [Sept. 28, 1961], No. 34860/61. Heading B3K. A dovetail milling-cutter comprises a hollow conical body 1, screws 8 being inserted from the interior of the body to secure elements 9, 10 to the outside of the body to hold blades 15 thereon. The blades are located by screws 17 and a shoulder 12 and have a cutting-edge at each end. A pair of blades may be located in each gap 16 as in Specification 942,295. The cutter is assembled by pinning and screwing on the blocks 9, placing the blades in position and then screwing on the blocks 10.
Patent GB-467512-A (GB)
Title: Improvements in and relating to governing mechanism for turbo alternators
IPC: F01D17/26
Filed: 1935-12-17
Abstract: 467,512. Fluid-pressure servomotorcontrol systems. BRITISH THOMSONHOUSTON CO., Ltd., and COLLINGHAM, R. H. Dec. 17, 1935, No. 35017. [Class 135] A pilot valve for controlling the flow of oil to a servomotor which actuates the admission valve of a turbine, is surrounded by a sleeve adapted, when the condenser vacuum falls, to be actuated by high pressure oil to cause the admission valve to be moved toward the closed position. The invention is particularly applicable to a turbo-alternator set as described in Specification 414,780, [Group XXVI]. The pilot valve 1, controlled by the governor, slides in a sleeve 2 enclosed in a cylinder 3 to which oil is admitted under the control of a valve 9. This valve is actuated by a bellows 6 in communication with the condenser and loaded by a spring 7 adjustable by a hand wheel 8. Linkage 11 and a floating lever 12 give a follow-up action. The flow of oil to and from the servomotor is through conduits 4, 5. When the vacuum falls, valve 9 is lowered and oil admitted below the sleeve to raise it against the action of a loading spring. Movement of the admission valve restores the pilot valve 1 to neutral position.
Patent GB-522020-A (GB)
Title: A new or improved method of and/or apparatus for effecting automatic control by means of fluid pressure
IPC: G05D23/12
Filed: 1938-12-01
Abstract: 522,020. Fluid-pressure servomotor-control systems. KENT, Ltd., G., and BARTLETT, L. A. C. Dec. 1, 1938, No. 35047. [Class 135] A servomotor apparatus for maintaining a variable such as flow, level, pressure, speed or temperature at or substantially at a predetermined value includes means adapted to establish in response to a departure in the variable from the predetermined value two actuating effects of different sensitivities by the regulation of two separate fluid supplies to two devices adapted conjointly to operate (directly or through a further servomotor) a control valve or the like for the variable. In the arrangement shown in the Fig., a control valve 8 is actuated by a pair of diaphragms 5, 6 bearing against pads 27, 26 secured to the valve spindle 7 and loaded by a series of springs 28. The chamber 3 above the diaphragm 5 is connected by a pipe 1 with a nozzle 14 while the chamber 4 above the diaphragm 6 connected by a pipe 2 fitted with an adjustable throttle N with a nozzle 15. The supplies of air to these nozzles from supply nozzles (not shown) is controlled by a pivoted baffle or chopper 13, the edge co-operating with the nozzle 14 requiring a large movement to interrupt completely the air supply while the edge co-operating with the nozzle 15 only requires a small movement to effect the same result. The baffle 13 is moved by a member sensitive to variations in the variable acting through levers 18, 20 coupled by an adjustable lever 21 pivoted to a carriage 22 adapted to be traversed by a rack and pinion 23 turned by a calibrated manipulating member 23<SP>1</SP>. In a modification a separate baffle is used for each nozzle, the second baffle being either adjustably coupled to the first or connected to the variable sensitive device through a second adjusting gear 18-23.
Patent GB-406842-A (GB)
Title: Appliances for playing educational games
IPC: G09B29/10
Filed: 1932-12-12
Abstract: 406,842. Games apparatus. CLAXTON, W. F., 7, Delaine Road, Withington, Manchester. Dec. 12, 1932, No. 35118. [Class 132 (ii).] Games apparatus comprises a playing board, Fig. 1, having marked on it a geographical map provided with unnamed circles in place of towns or villages, a set of discs each marked with the name of a town or village on one side and a different town or village in a different colour on the other side and a key map to show whether the discs have been placed by the players in the correct circles on the playing board. The number of discs which a player must place on the board is determined by throwing a die. According to the Provisional Specification, the discs are stored in a box having six compartments numbered 1-6 and a player places on the board one disc taken from the compartment corresponding in number to that indicated by the die.